<!doctype html>
<html>
<head>
    <title>事件流</title>
    <meta charset="utf-8">
    <script src="js/event.js"></script>
    <script src="js/script.js"></script>
<body>
<div id="box">
    <input type="button" value="按钮" id="btn" onclick="showMes()">
    <input type="button" value="按钮2" id="btn2">
    <input type="button" value="按钮3" id="btn3">
    <a href="event.html" id="go">跳转</a>
</div>
</body>
</head>
</html>